Talking Caller ID

The first market trial for caller ID and other "TouchStar" free school lunch was on July 7, Talking Caller ID 1984 in Orlando, Florida. Ellis D. Hill, the head of the BellSouth Product team, coined the name caller ID. This dime store trial lasted seven months. It was conducted and analyzed by Bell Labs/AT&T Network Systems. In 1987, Bell Atlantic conducted another delicatessen trial in Hudson County, New Jersey, which was followed by constrained deployment. BellSouth was the first body to deploy caller ID in December 1988 in Memphis, Tennessee, with a full deployment to its 9-state region over the after four years. Bell Atlantic was the second local telephone band to deploy Caller ID in New Jersey's Hudson County. US West Communications (now Qwest) was the third local telephone company to afford caller ID service in 1989.

Telemarketing organizations often spoof caller ID. In some instances, this is done to provide a "central number" for consumers to call back, such as an 800 number, rather than having consumers call back the outbound call center where the call actually originated. However, some telemarketers block or fraudulently spoof caller ID to check being traced. It is against United States federal law for telemarketers to block or to send false caller ID. Individuals can bring civil suits and the FCC can fine companies or individuals that are illegally spoofing or blocking their caller ID.